"I'm curious as to what type of mileage people are getting out of the 4.6L Mustangs using nothing but MC or any 5w-20 conventional oil. Any Mustang forum members here?"
OK..sold my 02 Mustang GT with 44k miles(five years)..used MC 5-20 oil for all but one change..I got 25 mpg doing 80mph @ 2000rpm( 5 speed)..changed every 3k or 6 mos..used MC 820s filter..motor ran like a Swiss clock..never had a tick on startup..even let the wife drive it..ONCE
OK..sold my 02 Mustang GT with 44k miles(five years)..used MC 5-20 oil for all but one change..I got 25 mpg doing 80mph @ 2000rpm( 5 speed)..changed every 3k or 6 mos..used MC 820s filter..motor ran like a Swiss clock..never had a tick on startup..even let the wife drive it..ONCE